Backert Labs Rhumba 1.1 demo: Logistics

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Comments

  • breal74breal74 Posts: 327
    edited May 2016
    Good news is that it is in the system, but.... now it has a low level hiss and a light pop about three times a second at constant intervals when there was none the first time I had it during the preamp tour.

    I checked all of my connections and also now have the preamp hooked up to the amp without anything else plugged into the Rhumba. The level of hiss and pops stay constant at all volumes and get drowned out with higher volumes. Also, the bass slam is not as dramatic on the same tracks, even after ample warm up time.

    Any thoughts on what could have changed since the last time I had it?
    Could it be the tubes?

    Thanks for the help gents,

    Brian
    Post edited by breal74 on
  • nooshinjohnnooshinjohn Posts: 18,396
    edited April 2016
    It did not exhibit this in my rig either. Was there any damage to the packaging?
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with PS Audio NuWave Phono converter, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 two channel preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Krell Evolution 525a CD Player, Pioneer Elite SC-65, Oppo UDP-205 Blu-ray , Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds

  • NightfallNightfall Posts: 7,545
    Hissing and popping in one channel or both?
    afterburnt wrote: »
    They didn't speak a word of English, they were from South Carolina.
  • breal74breal74 Posts: 327
    Nightfall wrote: »
    Hissing and popping in one channel or both?

    Both channels.

    It did not exhibit this in my rig either. Was there any damage to the packaging?

    Everything looked good and there was no visible damage to the packaging.
  • breal74breal74 Posts: 327
    I switched from my ZenWave RCA's to a pair of Kimber Hero's and the problem still persists. Also, the amp and preamp are on separate 20 amp outlets.
  • BackertLabsBackertLabs Posts: 117
    We will need to speak with you to see if we can figure out the issue, and if not, we will need to look at the unit. Not likely to be the tubes. We will handle this offline and report back.
    The preamp specialists. http://BackertLabs.com
  • BackertLabsBackertLabs Posts: 117
    Maybe after being shipped 47 times in a row it has decided to protest??
    The preamp specialists. http://BackertLabs.com
  • breal74breal74 Posts: 327
    I just talked to Andy at Backert, on a Sunday at that, and he is getting ahold of Bob to help diagnose the problem.

    I have to say that Backert Labs is one heck of a company that bends over backwards for there customers!

    I will keep you posted.
  • tonybtonyb Posts: 29,904
    They are indeed, work it out and let us know when things are back on track. Still want to hear more about the sound from you when everything is back up to snuff.
    HT SYSTEM-2 channel
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Dynaudio Audience 72
    Polk FX500 surrounds
    Cary xciter dac
    Cullen modded Sonos
    Joule la-100 pre
    B&k Ref 4420 amp

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • nooshinjohnnooshinjohn Posts: 18,396
    I knew I should have used protection.... >:)
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with PS Audio NuWave Phono converter, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 two channel preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Krell Evolution 525a CD Player, Pioneer Elite SC-65, Oppo UDP-205 Blu-ray , Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds

  • nooshinjohnnooshinjohn Posts: 18,396
    any updates here?
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with PS Audio NuWave Phono converter, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 two channel preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Krell Evolution 525a CD Player, Pioneer Elite SC-65, Oppo UDP-205 Blu-ray , Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds

  • breal74breal74 Posts: 327
    The Rhumba is on its way back to Backert for a once over.
  • BackertLabsBackertLabs Posts: 117
    I'm sure it doesn't matter, but just out of curiousity was the trip from CA to WA via UPS or FedEx?
    The preamp specialists. http://BackertLabs.com
  • nooshinjohnnooshinjohn Posts: 18,396
    Fed ex
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with PS Audio NuWave Phono converter, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 two channel preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Krell Evolution 525a CD Player, Pioneer Elite SC-65, Oppo UDP-205 Blu-ray , Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds

  • tonybtonyb Posts: 29,904
    edited May 2016
    I'm sure it doesn't matter, but just out of curiousity was the trip from CA to WA via UPS or FedEx?

    Knowing John....it was by pack Mule.....Greyhound bus.....then handed off to a delivery service by the name of 2 kids and a big wheel. :D
    HT SYSTEM-2 channel
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Dynaudio Audience 72
    Polk FX500 surrounds
    Cary xciter dac
    Cullen modded Sonos
    Joule la-100 pre
    B&k Ref 4420 amp

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • erniejadeerniejade Posts: 4,249
    I have had issues with all of them BUT I have had better luck in general with fedEx vs ups or usps
    Lumin D1, KEF LS50 Wireless, Cayin scd-50T, LH Labs VI Dac, Technics 1200, Denon DL160, Jolida D9, HP I7 Laptop, Wireworld Eclipse 7, Wireworld Aurora, Wireworld Electra 7, Signal Magic Digital, Cardas Quadralink 5C, Velodyne SPL1200
    USB helpers: w4s Recovery

    HT: Elite SC27, Full Polk RTI setup.

  • nooshinjohnnooshinjohn Posts: 18,396
    edited May 2016
    I packed it very well guys
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with PS Audio NuWave Phono converter, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 two channel preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Krell Evolution 525a CD Player, Pioneer Elite SC-65, Oppo UDP-205 Blu-ray , Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds

  • NightfallNightfall Posts: 7,545
    Everything I have bought/karma'd from John has been very well packaged.
    afterburnt wrote: »
    They didn't speak a word of English, they were from South Carolina.
  • breal74breal74 Posts: 327
    The Rhumba was packed very well so no fault to John, or Backert for that matter. That preamp has been shipped all over God's country and back and strange things can happen. I am glad that they are a stand up company that backs their products and I have future interest in having them modify my McCormack.

    Can't wait to get it back!
  • tonybtonyb Posts: 29,904
    erniejade wrote: »
    I have had issues with all of them BUT I have had better luck in general with fedEx vs ups or usps

    You had issues with pack Mules and 2 Kids and a big wheel ? Good to know you had better luck, in general, with FedEx. LMAO !!

    Just bustin' John's chops a bit, I'm sure he packed it like it was his own private parts inside the box. :)
    HT SYSTEM-2 channel
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Dynaudio Audience 72
    Polk FX500 surrounds
    Cary xciter dac
    Cullen modded Sonos
    Joule la-100 pre
    B&k Ref 4420 amp

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • nooshinjohnnooshinjohn Posts: 18,396
    tonyb wrote: »
    erniejade wrote: »
    I have had issues with all of them BUT I have had better luck in general with fedEx vs ups or usps

    You had issues with pack Mules and 2 Kids and a big wheel ? Good to know you had better luck, in general, with FedEx. LMAO !!

    Just bustin' John's chops a bit, I'm sure he packed it like it was his own private parts inside the box. :)
    My wife keeps those in a jar on the fireplace mantle. Sam Kinison tried to warn me before it was too late.
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with PS Audio NuWave Phono converter, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 two channel preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Krell Evolution 525a CD Player, Pioneer Elite SC-65, Oppo UDP-205 Blu-ray , Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds

  • tonybtonyb Posts: 29,904
    Hope you have some blue tac under the jar, you guys are primed and pumped for another big one out there. ;)

    Blue tac for blue balls in a jar....yeah, makes sense.
    HT SYSTEM-2 channel
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Dynaudio Audience 72
    Polk FX500 surrounds
    Cary xciter dac
    Cullen modded Sonos
    Joule la-100 pre
    B&k Ref 4420 amp

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • BackertLabsBackertLabs Posts: 117
    Just received the Rhumba. Thanks Brian. We will get this back to you shortly.
    -Andy
    The preamp specialists. http://BackertLabs.com
  • tonybtonyb Posts: 29,904
    Andy's on the ball as usual. How about having the big dogs sign the back for the man, we audiophiles get off on these things. ;)
    HT SYSTEM-2 channel
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Dynaudio Audience 72
    Polk FX500 surrounds
    Cary xciter dac
    Cullen modded Sonos
    Joule la-100 pre
    B&k Ref 4420 amp

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • nooshinjohnnooshinjohn Posts: 18,396
    I am curious to find out what went wrong
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with PS Audio NuWave Phono converter, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 two channel preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Krell Evolution 525a CD Player, Pioneer Elite SC-65, Oppo UDP-205 Blu-ray , Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds

  • BackertLabsBackertLabs Posts: 117
    I figured this would be a 1-day turnaround, maybe a part gone bad. But so far we have done a large number of tests on the Rhumba, on the bench and in various stereo systems, and have not found any problem. It sounds great - it must be psychology working here but I feel like this is my personal favorite Rhumba. Yet it clearly had an issue at Brian's place. Today we will subject it to another test that we came up with last night. We will keep you posted.
    The preamp specialists. http://BackertLabs.com
  • breal74breal74 Posts: 327
    It sounds great - it must be psychology working here but I feel like this is my personal favorite Rhumba.

    I'm rather fond of it myself. Thanks for all of the work and time you have spent on the unit and I can't wait to get it back!
  • tonybtonyb Posts: 29,904
    Hows about an update on this....is it back in the rig yet ?

    Just wondering too if Andy has a beater Rhumba laying around, if there is such a thing, that might find it's way back around Chicago. Never hurts to ask, right ?
    HT SYSTEM-2 channel
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Dynaudio Audience 72
    Polk FX500 surrounds
    Cary xciter dac
    Cullen modded Sonos
    Joule la-100 pre
    B&k Ref 4420 amp

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • BackertLabsBackertLabs Posts: 117
    We will be sending back Brian's Rhumba in a couple days. As for the question: if you're paying shipping, you are welcome to another demo. Was that the question?
    The preamp specialists. http://BackertLabs.com
  • breal74breal74 Posts: 327
    Hey Polkies,

    First and foremost I have to give the highest of praises to all at Backert Labs for being an outstanding company. We have been in constant contact and they are a real pleasure to deal with.

    After putting my Rhumba on the bench and running several different tests trying to recreate my situation they concluded that there was actually nothing wrong with the unit. I am sure they would be willing to go into a little more detail on the tests that they performed. We talked several differnt times about how I had it set up, cabling used and possible interferences and they were not able to recreate the noise that was happening in my system. Hopefully it was some passing bad audio juju I had. I think I will burn some sage just to make sure.

    In the end, Bob and Andy offered to put all new guts into my old chassis and send it back and see if that fixes the issue. They also offered to burn in the unit, but I declined for two reasons. First, I felt that it would be a better way to get to know the Rhumba as a whole and second, I thought that it would be fun to give updates on the sound throughout the burn in process as there never was a chance to do that with one set of ears with the demo.

    Thanks again Bob and Andy! I greatly appreciate your hard work and dedication.

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